Circuit-closer for electric-lighted levels or plumbs.



A. R. JONES.

CIRCUIT CLOSER FCR ELECTRIC LICHTED LEVELS 0R PLuIws. APPLICATION FILED AUG. I6. 1913.

1,139,295. 11119111611 May11y1915.

ld SIMM A. R. IONES CIRCUII, CLOSER FOR ELECTRIC LIGHTED LEVELS 0R PLUMBS.

APPLICATION FILED AUG- IG. |9l3.

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. STATES PATENT OFFICE nrnun'fnnssmnmnns, on Jamison, Manin.V

I' Toallwjwfatlmayvconcevzr... ARTHUR RUSSELL Be it known that I,

f Journal-a citizen' of the United States, residing at Bangor, in the-'county -o'Penobscot and State of Mai ne,have invented certain] lnew and useful .ImpI-o'vement's in Circuit-v Closers for: 'Electric-Lighted Levels or "Pluinbs, of which the following is a specification, reference being had therein to `10 accompanying drawing.

This invention relates toa level -andfhisfor its object' the productionlof a simple and efficient means whereby l1 ht may be thrown upon the spirit levels or allowingI the saine to be seen.

Another object of theinvention is the production of a simple 'and eficient Contact member which may slide upon' the support for closin the circuit and lighting the lamp and whic may be easily moved for breaking the contactwhen it is not desired to use the light.

With these and other objects in view this invention consists of certain novel combinatiene, constructions and arrangements of parte as will be fully described and claimed.

In the accompanying drawings: Figure 1 is a side elevation of `the level. Fig. 2 is a side elevation of a portiono thelevel the cover plate bein removed. Fig. 3 isa central longitudine section of the level. Fig. 4 is a rear elevation of the cover plate show- `ing the contact members carried thereby. Fig.` 5 is a section taken on the line 5-5 of iig. 3 looking'in direction of the arrow. Fig.T 6 is a section taken on the line 6-6 of ig. 3 looking in direction of the arrow. Fig. 7 is a sectionY taken on the line (-7 of Fig. 3 looking in direction of the arrow. Fig. 8 is a longitudinal section taken through the cover plate and one of the contact members. Fig. 9 is a transverse section taken through the plate and one of the contact members. Fig. 10 is a top plan view of the housing used in connection with the contact member. Fig. 11 is a perspective view of the bottom portion of the sliding circuit closure. Fig. 12 is a perspective view of the insulating block and the contact platecarried thereby. Fig. 13 is a perspective view vof a filler block used in combination with the device.V Fig. 14 is a dia ammatic view of the wires forming the circuit. Referrin to the accompanying drawings by numera s; 1 indicates the level having a circular opening 2 and a pocket 3. The eirltected by means-of t specmamn einem raient. Pteted May-11i1915p Applicatie med 'sagen ie, isis.. semi inifzsaizs.

.cular openin 2v provided .with a tra-nslverse spirit evel 4 while the pocket 3 is provided with 'a 'longitudinally extending spirit'. level. 5i-,this splirit level 5 being proe' rotcctor platee'.

From the fore oin'g escription it will be Aseen. thatl a-simp e level has been produced which is adaptedgt'o'befaplied to'vertical and horizontal surfaces. or determinin whether or not the same are exactly vertice or horizontal.

The body of the level 1 is provided with a squared' pocket '7 which is adapted to receive the batteryB. 'Ihisbattery 8 is provided with the contact members 9 which are adapted to be engaged by the stationary contact members 10 carried by the level 1. This level l is provided `with a slanting channel 11 which is adapted to receive the.

wires 12. These wires extend so as to pass 1 thru hA the socket 13 so as to engage the incan escent light 14.- In order to hold the w1resf12 in position within 'thev socket 13 there is provided afiller block 15 having longitudinal grooves 16 in which the wires are adapted to fit. In order to hold the light 14; so as to reflect light upon the spirit level f5, the spirit level and lamp 14 are held in position by means of the cement or plaster of Paris 17. It will also be seen that the block 15 will be held in position by means of escrow 18.' An incandescent liht 19 is held within an opening 20 forme in the levelbody ll so as to reiect light upon the spirit level 4. This light is provided with the wires 2l and 22.

In order to close the circuit when desired, the level is provided with a pair of circuit closing members which are carried by the cover plate 23, this cover plate being positioned over the squared pocket 7 and being held in position by means of the 'screws 24.

This cover plate 23 is provided with a pair of rectangular openings 25 and in each one of these openings 25 there is positioned a housing 2 6. This housing 26 is provided with the vertical sides 27 und with the connecting bridge 28. This bridge 28 is pro-` vided with a pair of longitudinal slots 29 which are adapted to receive the bent lips 30 vof the sliding circuit closure 31. This sliding circuit closure is provided with the ribs 32 for facilitating the movement of the same upon the bridge 28. The cover plate 23 is rovided with the supporting bolts 33 which are provided with the inffl ith

sulating blocks t. 'lhe housing 26de positioned upon these supporting bolts 33 so as to rest upon the insulating blocks 3ft. A spring contact firm 35 is soldered to the housing 26. rll`his spring contact arm is provided with s. crimped portion 35 which is positioned out of slineinent with the ends of the spring Contact arm. lin this manner it will be seen that the heut lips 30 will be allowed to slide Within the slots 29 without interference from the spring contact arm 35. An aperture 37 is formed Within the housing 26 in which hts the heed 38 of the contact pin 39. 'lhis contact pin 39 and head 38 are carried by the spring contact arm, Wherehy the head 38 will spring out- Wardly through the aperture '37. A inico. strip e() is positioned upon the lower side of the spring contact arin 35 an elongated insulating strip il which may he formed oil vrubber is positioned upon the lower side of the mics strip t0. An elongated contact plete l2 is carried hy the insulating strip hy means or e rivets d3. lt `will loe seen hy use of the mics. strip l0 thst the rivets Will not come into contact with the arin 35. The insulsting ll is provided with an opening in which the end o'l the contact pin 39 normally eX tends. l-hen the circuit closure 3l is moved along the hridge 28, the heed 38 will he moved inwsrdly whereby the contact pin 39 will corne into engagement with the con* plete 42. order to hold the mics strip t0, insulsting strip 3l and contact in position, there is provided strip @finies t5, which entends transversely scross 'the housing 26 and rests upon the securing holte 33. The har le is then positioned upon the securing post 33. These portions ore held in position hy means oil the nuts l? heing threaded upon the holts 33 wherehy the clamping action of the hor upon the transverse niics strip l5 'will hind the inico strip t0, insulating strip tl and contact strip l2 in tirin engagement with the spring contact arm 35 'and the housing 26.

The inner ends of the Wires l2 which ure attached to the incandescent lornp lll entend into thesquared poclret 7 so as to ellor one ot the wires to he attached to the Sp'l contact plate While the other Wire l2 is sttoched to one of the stationery contact members l0. The wire 22 which is attached to the incandescent light l?? is sttsched to the contact ineinher l0 carried hy the level l while the Wire 2l is connected to the contect plate 42. A branch wire t8 is attached to one ot the stationary contact members l0 end the opposite end to one oil the hindposts 33.

lWhen the pin 39 cornes in Contact with the contact plate t2, closes the circuit. The current will poss through one ot the contact members il carried hy the hott/ery through is grounded upon the cover the contact meinher lO'csrried by the level and then through the branch wire t8 into .the binding posts 33. 'lhe current will then poss through the housing and sliding circuit closure into the pin 3f). llfhen this pin 39 is in Contact with the plate 42, the current will pass through this plate into the wire l2 which is carried thereby. rl`he current will continue to pass through the inccndescent light and baclr through the other wire l2 into the vother stationary contact carried by the level l and into the buttery hy ineens ot the other Contact member carried by the battery. rl`he light will continue to hurn as long es the pin 39 remains in engsgeinent with the plate lt is desired to light the lamp i9 the other sliding circuit closure 3l is moved so es allow the pin to come into engagement *with the contact plate 4:2. The current will then pass 'through one oi toe Contact inemhers 9 and l0 and through the hrsnch Wire and the binding post 33. As this binding post 33 is ground upon the cover plate 23 the current will pass through this cover plate end into the housing 26. The current will then pass through the contact pin and into the contsct plate ft2. As this plete d2 is connected to the Wire 2l the current Will continue in the Wire 2l and into the light i9. The current will then continue in the Wire 22 into the other contact l0 and then into the hatteryloy ineens of the contact carried thereby. will also he seen hoth lights will hurn ot the ssnie time hy allowing pins 39 to engage contact plete-s 42 and 4:2 since the bre-noli Wire 48 which is elec Yi colli] connected to one portion of the lonttery late 22.

A reni foregoing descrnA ion it will lo seen that o simple und e'licient level hss produced which is provided with electric ineans for illuminating the spirit levels csrriedtherehy, said electrical .meow heing provided with eilicient meinlcers for closing or breaking the circuit as desired.

Having thus described the invention, what isclaiined es new, is

y l. lin a circuit closer 'For un electric lighted level und plumb the combination oi s loody, nieansflor forming a circuit carried by seid body, s cover plete carried hy said loo-dy, c

housing carried by said cover plete, said housing comprising a plurality ot `vertical sides, an integral hridge carried hy said sides positioned ut c spaced distance belowv the top of said sides, s circuit closer slidsbly njiounted upon scid bridge :ind litting between seid sides, scid sides constituting sf shield for guarding said circuit closer, a spring redly secured to the under side of said loridge, said spring provided with on oil-set portion so es to allow the spring to swing easily without interference from seid orio-ige, e pin hei/'ing o heed corried hy free portion of said spring, said circuit closer adapted to engage said head for driving said pin inwardly for closing the circuit.

2. In an electric lighted level and plumb, the combination of a body, means for forming a circuit carried by said body, said body provided with a cover plate havingan elongated slot, a housing carried by said plate and extending through said slot, said housing comprising side Walls, an integral bridge carried by said walls, a circuit closer slidably mounted upon said bridge and fitting between said sides, said sides constituting a shield for guarding said circuit closer, said housing provided with integrally bent pori5 tions positioned upon the inner side of said plate, thereby holding said housing in its correct position. l

ln testimony whereof l hereunto alix my signature in resence of two witnesses.

AR HUR RUSSELL JONES. Witnesses:

LENA GOLDEN, LUTHER G. NAsoN. 

